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Product details

Parameters

Common mode voltage (Max) (V) 26 Common mode voltage (Min) (V) -0.3 Input offset (+/-) (Max) (uV) 150 Input offset drift (+/-) (Typ) (uV/C) 0.1 Gain (V/V) 100, 200, 50 Gain error (%) 1.5, 1 Gain error drift (+/-) (Max) (ppm/°C) 10 CMRR (Min) (dB) 100 Bandwidth (kHz) 80, 30, 14 Supply voltage (Max) (V) 26 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.115 Number of channels (#) 1 Comparators (#) 0 Features Bi-directional, Low-side Capable Rating Automotive Operating temperature range (C) -40 to 125 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

SOT-SC70 (DCK) 6 4 mm² 2 x 2.1 open-in-new Find other Current sense amplifiers analog output

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Wide common-mode range: –0.1 V to 26 V
  • Offset voltage: ±150 µV (maximum)
    (enables shunt drops of 10-mV full-scale)
  • Accuracy:
    • Gain error (maximum over temperature):
      • ±1% (C version)
      • ±1.5% (B version)
    • Offset drift: 0.5-µV/°C (maximum)
    • Gain drift: 10-ppm/°C (maximum)
  • Choice of gains:
    • INA199x1-Q1: 50 V/V
    • INA199x2-Q1: 100 V/V
    • INA199x3-Q1: 200 V/V
  • Quiescent current: 100 µA (maximum)
  • Package: 6-pin SC70

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Description

The INA199-Q1 is a voltage-output, current-sense amplifier that can sense drops across shunts at common-mode voltages from –0.1 V to 26V, independent of the supply voltage. Three fixed gains are available: 50V/V, 100V/V, and 200V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale.

This device operates from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. All gain options are specified from –40°C to +125°C, and are offered in a 6-pin SC70 package.




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Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
25
Description

The INA199B1-B3 devices are voltage output, high-side measurement, bi-directional, zero-drift current

shunt monitors. The INA199EVM is intended to provide basic functional evaluation of this device family.  The fixture layout is not intended to be a model for the target circuit, nor is it laid (...)

Features
  • Evaluation of all gain options through provided device
  • Ease of access to device pins with test points
  • Space for optional input filtering capacitors and resistors
  • Multiple input signal options


Design tools & simulation

SIMULATION MODEL Download
SBOM925.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOM926.TSC (252 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOM927.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOM928.TSC (253 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOM929.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOM930.TSC (253 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOMBC1.ZIP (24 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBC8.ZIP (24 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBD0.ZIP (24 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOL Download
SBOR020A.ZIP (525 KB)

Reference designs

REFERENCE DESIGNS Download
Three Phase AC Current Measurements Using Current Transformer Reference Design
TIDA-00753 The TIDA-00753 reference design demonstrates high accuracy wide range AC current measurement for a three phase motor using the INA199 zero drift current shunt monitor. The design also has low power consumption of 25mW for Gain stage of 200 as compared to a discrete solution. The design footprint and (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
60W Synchronous Boost LED Driver Reference Design for Automotive Application
TIDA-00748 TIDA-00748 is a 60W Synchronous Boost Design for automotive LED application utilizing the Synchronous Boost Converter LM5122-Q1.  This design applies to automotive lighting for exterior lighting such as headlights and taillights and also interior LED lighting systems. The design accepts an (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Current Shunt Monitor with Transient Robustness Reference Design
TIDA-00302 This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

document-generic Schematic document-generic User guide
Design files

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 6 View options

Ordering & quality

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  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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